Improvement in windmills



S. RUE & W. Rf MAN-N.

Wind-Mills.

Patented Apr|14,187-11.

SCHUYLER RUE, JR., OF ELGIN, AND VILLIAM R. MANN, OF EARLVILLE, ILL.

IMPRQVMENT IN wiNDMILLs.

Specification forming part of Letters Patent No. 149,793, dated April14, 1874; application filed I FebruaryQS, 1874.

To all whom zt may concern:

l Be it known that we, SGHUYLER RUE, Jr., of Elgin,'in the county ofKane and State of Illinois, and WILLIAM RMANN, of` Earlville, in thecounty of La Salle, same State, have invented certain new and usefulImprovements in Windmills; and we do hereby declare the following to bea full, clear, and exact description of the same, reference being had tothe accompanying drawings forming part of this specification, in which-Figure l is a side elevation of our improved windmill, partially insection. Fig. 2 is a longitudinal section of the same. Fig. 3 is anelevation, showing the spiral slot in the shaft and the hubs with thearms removed; and Fig. 4 is a section through line :t w, Fig. 3, lookingtoward the movable hub.

Similar letters of reference in the accompanying drawings denote thesame parts.

Our invention relates to that class of windmills in which the pressureof the wind on the sails is automatically regulated; and to this end itconsists in the employment of certain devices for that purpose, ashereinafter more fully set forth.

`1n the accompanying drawings, A A are the inclined supports for thewindmill, provided with a crosspiece, B, which supports the frame E E,in the upper end of which is journaled, at H H, the horizontal hollowshaft G, to which is attached the fixed hub K. L is a movable hubfitting loosely over the outer end of the hollow shaft G, and capable ofsliding thereon, as hereinafter more fully set forth. L' K are arms, towhich the iiexible sails M M, made of cloth or other similar flexiblematerial, are

attached, the lower ends of said arms being enlarged and madewedge-shaped to fit into the correspondingly formed wedge shaped `faceof the hollow shaft Gr and opposite each other. The outer ends of thepin j), after passing through the slots, are attached to an inner rim ofthe movable hub L, against which the projections N N abut. To the innerend of the 'sliding rod r are attached the cords r2 r3, the latterpassing over the pulleys u and t, and having the weight lw attached toits lower end. The cord r2 passes over a pulley, u, and thencevertically downward parallel with the cord r3.

It will be seen by this construction that the weight acts to draw therod inwardly, carryA ing with it the movable hub L and its arms L, andcausing, by means of the pinp and spiral slots s s, a partial rotationof the rod r and movable hub L on the hollow shaft G, and moving thearms L K from the position they occupy when the hubs L and K are farthest removed, and in a plane passing radially through the axis of theshaft G, to a position in a plane perpendicular thereto, in which thewind will bear with its full force upon the sa-ils. As the pressure ofthe wind increases upon the sails in this latter position it willovercome the force of the weight, and the movable hub will be forced outand partially rotated, and when the hub is moved out to its full extentthe wind will cease to operate the mill. A force applied to the cord r2will move the rod r and the hub L outward, and

thus decrease the pressure of the wind upon the sails. I is aneccentric, to which the pitman p of a pump, if it is designed to applythe power to pumping water, may be attached. C is a turn-table, to whichthe frame E E is attached, its outer end, preferably, being providedwith frictionrollers D D, bearing against a ring attached tothe upperends of the uprights A A. The lower end of the frame E E is journaled inthe cross-piece B, an opening, F, being left for the passage of thepitman p and the cords r2 r3.

It will be observed from this construction that, should the partsbecomeV disarranged and it is desired to stop the machine, by pullingthe cord r2 the rod o" and the movable hub will be thrown outward, andno pressure will be exerted on the sails to turn them.

The licxible sails M M are made of cloth, canvas, or other similariiexible material.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

' l. A hollow shaft provided with a fixed hub,

n frnlvr rrrcn.

to which is attached a set of arms, to which l movable hubs L K, havingthe arms L K, to

the inner ends of the flexible sails are fastwhich flexible sails areattached, sliding and cned, in combination with a rod sliding and lpartially rotating rod r, Weight w, and cord r3,

partially rotating in the hollow shaft, therod Q substantially asdescribed, and for the purbeing attached to ahub carrying a set of arms,l poses set forth.

to which the outer ends of the exible sails SGHU'YLER RUE, JR.

WlLLAM R. MANN.

are attached, substantially as described, and

for the purposes set forth. v l 2. The hollow shaft G, provided withspiral t slots s s, in combination with the fixed andl Witnesses HENRYB. WILLIS, MELVILLE CHURCH.

